Superman #243

Superman #243 (On Sale: August 12, 1971), has a classic Superman cover by Neal Adams and Dick Giordano.

We begin with "The Starry-Eyed Siren of Space" by Cary Bates, Curt Swan, and Murphy Anderson. A female alien intelligence creates a body for herself and is endangered by menaces of her own subconscious creation. Her mate asks Superman to help save her, and then, when she falls for Superman, builds a duplicate Superman body for himself, and attacks him. Eventually, the misunderstanding is cleared and Superman is able to return to Earth via the Timestream. Reprinted in Best of DC #12 (1981).

Next is a World of Krypton tale, "The Death-Trails of Krypton" by Cary Bates, Bob Brown, and Murphy Anderson. 2000 years ago, a Kryptonian chemo-engineer named Dol-Nd discovered that he could create flying wings for himself by using a crystalline element he named Trolium, after Trolius, the mythological lord of Krypton's red skies. However, the Trolium created permanent green death-trails in the sky after his flight, which disintegrated any object that flew into them. After defeating a criminal who tried to steal the wings, Dol-Nd destroyed his invention, but the death trails remained in the sky until Krypton's destruction. Reprinted in Best of DC #40 (1983).

Our reprint is "The Battle of the Atoms" by Don Cameron, Sam Citron, and George Roussos and reprinted from Superman #38 (1946).  Clark and Lois follow up on a tip outside of Metropolis. They discover rocks, trees, and metal bent into odd shapes as if melted. Lois is attacked by three men, but Superman fights them off. The reporters then return to the Daily Planet to file stories.

At the office, the Daily Planet building begins melting as well. Luthor is behind the attack using a newly developed molecular impulsion beam. Superman repairs the building, then stops Luthor's henchmen from robbing a bank.

Superman then pursues Luthor. Luthor's weapon temporarily knocks Superman from the sky, but he is revived by a local power plant. Superman then apprehends Luthor, who tries in vain to kill Superman using a miniature atomic bomb.

Edited by Julius Schwartz.